Question

question #7
in 1990, carl woese proposed that bacteria and archaea were disparate domains of prokaryotes based on the analysis of their ribosomal rna, the genetic material that plays an active role in the formation of proteins. today, the phylogenetic branches of bacteria, archaea, and eukarya form the basis of the three - domain system of classification that is still in use.
as used in the text, what does the word \branches\ most nearly mean?

1. boughs
2. offices
3. chapters
4. groupings

Explanation:

In the context of the three - domain system of classification, "branches" refers to groupings of organisms based on their evolutionary relationships. The other options like boughs (related to trees), offices, and chapters don't fit the biological classification context.

Answer:

1. Groupings